Home / 28,911.90-43,331.40-14,088.90

Finding the Fourth Proportional to 28,911.90, 43,331.40 and 14,088.90

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Solution

The fourth proportional to 28,911.90, 43,331.40 and 14,088.90 is: 21,115.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,911.90 : 43,331.40 = 14,088.90 : x
  2. Step 2: Convert to fraction form
    28,911.90/43,331.40 = 14,088.90/x
  3. Step 3: Cross multiply
    28,911.90x = 43,331.40 × 14,088.90
  4. Step 4: Simplify right side
    28,911.90x = 610,491,761.46
  5. Step 5: Solve for x
    x = 610,491,761.46/28,911.90
  6. Step 6: Final answer
    x = 21,115.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.